What is the footprint radius for different mooring system types?

For different mooring system types, the footprint radius is the following:
• With Tension leg it is 30 m (based on Design considerations for tension leg platform wind turbines – ScienceDirect)
• With Taut it is the same as water depth.
• With Catenary it is (sqrt (line lenght^2 – depth^2)) based on the conservative assumption of a completely straight-stretched line.